Chalking device.



11o-838,895. PATENTED DB0.11,1906.

, nmRwmg# i K CHALKING DEVICE. I

APPLIUATION FILED JUNE 1. 1906.

Nrrn PRESTON THOMAS ERWIN, OF FVERTON,`MISSOURI.

CHALKING DEVICE.

` Specification of Letters Patent.

Patented Dec. l1, 1906.

Appiimion me@ June 1,1906. serai No. 319,705.

T0 all wha/n, it may concern:

Be it known that I, PRESTON THOMAS ER- WIN, a citizen of the UnitedStates, and a resi-- dent of Everton, in the county of Dade and State ofMissouri, have invented a new and Improved Chalking Device, of which thefollowing is a full, clear, and exact description.

This invention relates to chalking devices and it is especially usefulin connection with devices of this class used by carpenters or masons toapply chalk to cord and the like.

The object of the invention is to provide a chalking device which issimple, inexpensive to manufacture, and efficient in operation, andwhich permits the chalk to be applied to a cord expeditiously and in acleanly manner.

The invention consists in the construction and combination ofparts to bemore fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a longitudinal section of my invention, showing it in use.Fig. 2 is a perspective view of a blank from which a part of the deviceis formed. Fig. 3 is a plan of a blank from which another part of thedevice is formed, and Fig. 4 is a cross-section on the line f1 4 of Fig.1.

Referring more particularly to the drawings, I provide a tubular body 1,which may be formed from a blank 2, of sheet metal or other suitablematerial, as shown in Fig. 2. The blank 2 is substantially rectangularin form and has at one extremity thereof an extension-tongue 3,substantially circular in form and joined to the body of the blank bymeans of a narrow neck i and has the end opposite to that at which theextensiontongue 3 is located turned back upon the body of the blank.When the blank is rolled or otherwise suitably shaped to form the body1, it will be understood that the portion turned back, as shown in Fig.2, will be upon the outside of the tubular body and form an offset. Thisoffset is provided with threads 5 for a purpose to be describedhereinafter. The tongue 5 is laterally disposed across the open end ofthe tubular body 1, as clearly shown in Fig. 1. The neck 4 permits thetongue to be oiset from the end of the tube, and thus there is formedbetween the tongue and the end of the tube a recess 6,

adapted to receive the cord 7 to ybe chalked. The tip of thelaterally-disposed tongue 3 is bent outward into a slight curve 3a, asshown in Fig. 1, to facilitatethe introduction of the coro. 7 into therecess 6. The chalk 8, .preferably in the form of a stick, is placed inthe tube and projects into the recess 6.

Fig. 3 shows a blank 9 of similar material to that of blank 2, having acircular extension 10, from which is formed a cap 11 by rolling or othermeans, which is provided at one end with internal threads 12. Locatedinside this cap I provide a helical spring 13, which is soldered to theclosed end of the cap formed by the laterally-disposed extension 10. Thecap 11 is adapted to be screwed onto the body with the spring projectinginto the body and abutting against the chalk stick 8, thus forcing thelatter in the direction of the recess and pressing it against the cord 7to be chalked as the latter is drawn back and forth in the recess. Asthe threads 5 are offset upon the end of the tube l the cup 11 may bescrewed onto the body beyond the threads 5, and as the internal'threads12 may be formed inside of the cap of any desired length limited by thedimensions of the cap it will be possible to cause the spring 13 toproject for a considerable distance into the tube 1 by screwing the cap11 down upon the tube 1 as far as possible. It will be understood thatthe tension of the spring and the pressure of the chalk against the cordcan be regulated by screwing the cap a greater or less distance onto thebody. As the chalk wears away the cap can be tightened similarly to holdthe chalk firmly against the cord or laterally-disposed tongue 3, whichis adapted to act as a stop to prevent the chalk from projecting too farfrom the body.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A chalking device comprising a tubular bodyadapted toreceive a stick of chalk and having an integral offset tongueat one extremity, said tongue being laterally disposed toward theopening at an end of said body to constitute with said end a recessadapted to receive a cord, and an adjustable spring within said bodyadapted to force said chalk into said recess.

2. A chalking device comprising a tubular body adapted to receive astick of chalk and having a recess at one end thereof adapted to receivea cord, a cap mounted at the oppo- IOO IIO

site end of said body and adjustable longitudinally of said body7 and aspring within said cap adapted to project into said bodyto force saidchalk into said recess.

3. A chalking device comprising a tubular body adapted to receive astick of chalk and having an integral oset tongue at one eX- tremity,said tongue being laterally disposed toward the opening at the end ofsaid body to constitute with said end a recess adapted to receive acord, a cap mounted at the opposite end of said body and adjustablelongitudinally of said body, and a spring within said cap and projectinginto said body and adapted to force said chalk toward said recess.

4. A chalking device comprising a tubular body adapted to receive astick of chalk and having an integral offset tongue at one eX-longitudinally of said body whereby the ten- 3o sion of said spring maybe varied.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

PRESTON THOMAS ERWIN.

Witnesses:

HOWARD RAGsDALE, G. W. MALLoRY.

